Pieter "Pier" Janssen (born 9 September 1956), also referred to as Pierre or Piet, is a Belgian former footballer and manager who played as a midfielder and made three appearances for the Belgium national team.[1][2]
Janssen made his international debut for Belgium on 19 November 1986 in a UEFA Euro 1988 qualifying match against Bulgaria, in which he scored the opening goal of the 1–1 home draw. He went on to make three appearances, scoring one goal, before making his last appearance on 29 April 1987 in a UEFA Euro 1988 qualifying match against the Republic of Ireland, which finished as a 0–0 draw.[3]